给定系统的实际抽样频率为[img=12x18]17e443fbccfe3df.jpg[/img],奈奎斯特频率定义为抽样频率的()。
A: 两倍
B: 二分之一
C: 相同
D: 倒数
A: 两倍
B: 二分之一
C: 相同
D: 倒数
举一反三
- 模拟信号[img=175x39]18034acad2d25d3.png[/img]的频率[img=58x23]18034acadb54393.png[/img]Hz,对其作理想抽样,抽样频率应该至少为 ,对应的抽样间隔为 。 A: 50Hz,0.02s B: 100Hz,0.01s C: 200Hz,0.005s D: 25Hz,0.04s
- 模拟信号[img=175x39]18034acbf41db05.png[/img]的频率[img=58x23]18034acbfd34806.png[/img]Hz,对其作理想抽样,抽样频率应该至少为 ,对应的抽样间隔为 。 A: 50Hz,0.02s B: 100Hz,0.01s C: 200Hz,0.005s D: 25Hz,0.04s
- 模拟信号[img=175x39]18034b076d26597.png[/img]的频率[img=58x23]18034b0775a9966.png[/img]Hz,对其作理想抽样,抽样频率应该至少为 ,对应的抽样间隔为 。 A: 200Hz,0.005s B: 50Hz,0.02s C: 100Hz,0.01s D: 25Hz,0.04s
- 模拟信号[img=175x39]1803a7073a374c2.png[/img]的频率[img=58x23]1803a707427152d.png[/img]Hz,对其作理想抽样,抽样频率应该至少为 ,对应的抽样间隔为 。 A: 50Hz,0.02s B: 100Hz,0.01s C: 200Hz,0.005s D: 25Hz,0.04s
- 模拟信号[img=175x39]18034ad63dae867.png[/img]的频率[img=58x23]18034ad64632b28.png[/img]Hz,对其作理想抽样,抽样频率应该至少为 ,对应的抽样间隔为 。 A: 200Hz,0.005s B: 50Hz,0.02s C: 100Hz,0.01s D: 25Hz,0.04s